Results 61 to 70 of about 247 (167)
The Astrophysical Journal, 2023 We present BISTRO Survey 850 μ m dust emission polarization observations of the L1495A-B10 region of the Taurus molecular cloud, taken at the James Clerk Maxwell Telescope (JCMT). We observe a roughly triangular network of dense filaments. We detect nine
Derek Ward-Thompson +157 more
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What is Known About the Polarization of Starlight in the Southern Hole
, 2020 Among the greatest mysteries in cosmology are the flatness problem, concerning the lack of curvature of the universe, and the homogeneity problem, questioning why the universe is almost isotropic despite having regions that are causally disconnected. These problems served as motivation for the theory of inflation, which suggests a period of exponential
Bhoj, Praneet +2 more
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Study on Optimization Method of Polarization Balance for Weak Starlight System
, 2023 The accuracy of star position simulation is the key factor affecting the accuracy of ground calibration test of spacecraft attitude measurement system. To solve the impact of nonimaging polarized stray light on the simulation accuracy of star position in the optical engine of the system, the generation mechanism of non-imaging polarized stray light has
Linghao Wu +4 more
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Interpretations of the 10% Polarization Observed in the Early Forward Shock Afterglow of GRB 091208B
The Astrophysical JournalThe ∼10% optical polarization observed at the early stage of GRB 091208B comes from the forward shock emission, which is higher than the conventionally predicted value.
Yang Liu, Mi-Xiang Lan
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Deneb Is a Large-amplitude Polarimetric Variable
The Astrophysical Journal LettersWe write to report the discovery that Deneb is a large-amplitude polarization variable. Over a ∼400 days time span from 2022 August Deneb’s polarization was typically around 3900 parts per million (ppm) in the SDSS ${g}^{{\prime} }$ band.
Daniel V. Cotton +4 more
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Multiwavelength Emission of Gamma-Ray Burst Prompt Phase. II. Spectral Polarimetry
The Astrophysical JournalPolarization spectra were predicted within the photosphere model. To seek more clues to distinguish between the models, both the time-resolved and time-integrated polarization spectra from optical band to MeV gamma-rays of the magnetic reconnection model
Jia-Sheng Li, Mi-Xiang Lan
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Investigation for Binary Characteristics of LS I + 61°303 with Optical Polarization
The Astrophysical JournalWe investigate the optical linear polarization caused by Thomson scattering of the stellar radiation for gamma-ray binary LS I + 61°303, which likely contains a young pulsar.
Jiaxin Liu +5 more
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Time-integrated Polarizations of the GRB X-Ray Flares
The Astrophysical JournalDespite decades of studies, the energy dissipation mechanism of the X-ray flares in the afterglow phase of gamma-ray bursts (GRBs) is still debated. If the jet is dominated by the Poynting flux, there would be a large-scale ordered magnetic field in it ...
Xing-Yao Wang, Mi-Xiang Lan
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Origin of the Twice-90° Rotations of the Polarization Angle in GRB 170114A and GRB 160821A
The Astrophysical JournalThe observed abrupt twice-90° rotations of the polarization angle (PA) in the prompt phase of gamma-ray bursts (GRBs) are difficult to understand within the current one-emitting-shell models.
Xu Wang +4 more
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The Astrophysical JournalSynchrotron polarization of relativistic nonthermal electrons in gamma-ray bursts (GRBs) has been widely studied. However, recent numerical simulations of relativistic shocks and magnetic reconnection have found that a more realistic electron ...
Cheng Kangfa +6 more
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